Home / 133,025.60-199,538.40-122,139.20

Finding the Fourth Proportional to 133,025.60, 199,538.40 and 122,139.20

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Solution

The fourth proportional to 133,025.60, 199,538.40 and 122,139.20 is: 183,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,025.60 : 199,538.40 = 122,139.20 : x
  2. Step 2: Convert to fraction form
    133,025.60/199,538.40 = 122,139.20/x
  3. Step 3: Cross multiply
    133,025.60x = 199,538.40 × 122,139.20
  4. Step 4: Simplify right side
    133,025.60x = 24,371,460,545.28
  5. Step 5: Solve for x
    x = 24,371,460,545.28/133,025.60
  6. Step 6: Final answer
    x = 183,208.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.